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hey friend .here is the solution
oc=od (given )
angel dco = angel cdo (angles opp. to equal sides)
but angel bao = angle dco (given )
so angle bao = angel cdo
they are forming alternate interior angles
so AB is parallel to CD.
oc=od (given )
angel dco = angel cdo (angles opp. to equal sides)
but angel bao = angle dco (given )
so angle bao = angel cdo
they are forming alternate interior angles
so AB is parallel to CD.
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